2009 Alpina Roadster vs. 2013 Infiniti G
To start off, 2013 Infiniti G is newer by 4 year(s). Which means there will be less support and parts availability for 2009 Alpina Roadster. In addition, the cost of maintenance, including insurance, on 2009 Alpina Roadster would be higher. At 3,696 cc (4 cylinders), 2013 Infiniti G is equipped with a bigger engine. In terms of performance, 2013 Infiniti G (324 HP @ 7000 RPM) has 28 more horse power than 2009 Alpina Roadster. (296 HP @ 6300 RPM) In normal driving conditions, 2013 Infiniti G should accelerate faster than 2009 Alpina Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2013 Infiniti G weights approximately 370 kg more than 2009 Alpina Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 Infiniti G is all wheel drive (AWD), it will have significant more traction and grip than 2009 Alpina Roadster. In wet, icy, snow, or gravel driving conditions, 2013 Infiniti G will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2013 Infiniti G (365 Nm @ 5200 RPM) has 3 more torque (in Nm) than 2009 Alpina Roadster. (362 Nm @ 4800 RPM). This means 2013 Infiniti G will have an easier job in driving up hills or pulling heavy equipment than 2009 Alpina Roadster.
Compare all specifications:
| 2009 Alpina Roadster | 2013 Infiniti G | |
| Make | Alpina | Infiniti |
| Model | Roadster | G |
| Year Released | 2009 | 2013 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 3696 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | W |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 296 HP | 324 HP |
| Engine RPM | 6300 RPM | 7000 RPM |
| Torque | 362 Nm | 365 Nm |
| Torque RPM | 4800 RPM | 5200 RPM |
| Engine Bore Size | 87 mm | 95 mm |
| Engine Stroke Size | 93.8 mm | 86 mm |
| Fuel Type | Gasoline - Premium | Gasoline / Electric Hybrid |
| Acceleration 0-100mph | 5.3 seconds | 5.6 seconds |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | CVT |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1395 kg | 1765 kg |
| Vehicle Length | 4100 mm | 4750 mm |
| Vehicle Width | 1790 mm | 1773 mm |
| Vehicle Height | 1300 mm | 1468 mm |
| Wheelbase Size | 2500 mm | 2850 mm |
